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  • 标题:Recoverable Privacy Protection for Video Content Distribution
  • 本地全文:下载
  • 作者:Guangzhen Li ; Yoshimichi Ito ; Xiaoyi Yu
  • 期刊名称:EURASIP Journal on Information Security
  • 印刷版ISSN:1687-4161
  • 电子版ISSN:1687-417X
  • 出版年度:2010
  • 卷号:2009
  • 期号:1
  • DOI:10.1155/2009/293031
  • 语种:English
  • 出版社:Hindawi Publishing Corporation
  • 摘要:This paper presents a method which attains recoverable privacy protection for video content distribution. The method is based on discrete wavelet transform (DWT), which generates scaling coefficients and wavelet coefficients. In our method, scaling coefficients, which can be regarded as a low-resolution image of an original image, are used for producing privacy-protected image. On the other hand, wavelet coefficients, which can be regarded as privacy information, are embedded into the privacy-protected image via information hiding technique. Therefore, privacy protected image can be recovered by authorized viewers if necessary. The proposed method is fully analyzed through experiments from the viewpoints of the amount of the embedded privacy information, the deterioration due to the embedding, and the computational time.
  • 关键词:Original Image;Video Sequence;Discrete Wavelet Transform;Privacy Information;Wavelet Coefficient
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